Attached files

file filename
10-Q - 10-Q - PACWEST BANCORPa2203657z10-q.htm
EX-31.2 - EX-31.2 - PACWEST BANCORPa2203657zex-31_2.htm
EX-31.1 - EX-31.1 - PACWEST BANCORPa2203657zex-31_1.htm
EX-32.1 - EX-32.1 - PACWEST BANCORPa2203657zex-32_1.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 32.2

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted
Pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002

        Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350), the undersigned officer of PacWest Bancorp (the "Company") hereby certifies that the Company's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2011 (the "Report") fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 9, 2011   /s/ VICTOR R. SANTORO

    Name:   Victor R. Santoro
    Title:   Chief Financial Officer

        The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) and is not being filed as part of the Report or as a separate disclosure document.




QuickLinks

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002